
http://www.ussrphoto.com/UserContent/1182010_ZK47 a.jpg

http://www.ussrphoto.com/UserContent/1182010_ZK47 b.jpg
This lens is normally attached to my 1948 Kiev-II. I am puzzled by the fact that it is a rigid lens dated 1947. Were the rigid and collapsible ZK lenses produced at the same time?
David
(http://www.rcccuk.com)